Crossrail C315 Connaught Tunnel

Contract C315 was a technically challenging project that was very unusual for a major new transport scheme such as Crossrail - it was nearly all about the refurbishment of Victorian infrastructure dating back over 130 years, and the temporary works that enabled its successful delivery.

The principal elements were:

Refurbishment and modification to the existing Connaught Tunnel and approach ramps, including converting the twin binocular tunnels into one large-bore tunnel, requiring the central section to be removed and rebuilt by ‘cut and cover’ method enabled by two cofferdams in the dock allowing dewatering.

Construction of the surface rail between Custom House Station & North Woolwich portal

In the Considerate Constructors’ Scheme National Awards 2014 the project was Runner up in the Most Considerate Site category